Robtex

Up: 174.128.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 174.128.160.0/21
Down right: 174.128.168.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
174.128.160.49	PTR	mailtest.100mbpsservers.com
174.128.166.15	A	syncclarity.com
174.128.166.18	A	faxclarity.com
174.128.166.22	A	techclarity.support
174.128.166.31	A	fileclarity.com
174.128.168.11	A	87365-web2.jiwire.com
174.128.168.11	A	ipass.jiwire.com
174.128.168.11	A	87371-db2.jiwire.com
174.128.170.18	PTR	ns1508.ztomy.com
174.128.170.32	PTR	ns1508.ztomy.com
174.128.170.33	PTR	ns1508.ztomy.com
174.128.170.67	PTR	ns1508.ztomy.com
174.128.170.82	PTR	ns1508.ztomy.com
174.128.170.96	PTR	ns1508.ztomy.com
174.128.170.129	PTR	ns1508.ztomy.com
174.128.170.130	PTR	ns1508.ztomy.com
174.128.170.208	PTR	ns1508.ztomy.com
174.128.170.241	PTR	ns1508.ztomy.com
174.128.170.242	PTR	ns1508.ztomy.com
174.128.172.0	PTR	ns1508.ztomy.com
174.128.172.17	PTR	ns1508.ztomy.com
174.128.172.19	PTR	ns1508.ztomy.com
174.128.172.50	PTR	ns1508.ztomy.com
174.128.172.65	PTR	ns1508.ztomy.com
174.128.172.80	PTR	ns1508.ztomy.com
174.128.172.81	PTR	ns1508.ztomy.com
174.128.172.83	PTR	ns1508.ztomy.com
174.128.172.99	PTR	ns1508.ztomy.com
174.128.172.130	PTR	ns1508.ztomy.com
174.128.172.144	PTR	ns1508.ztomy.com
174.128.172.145	PTR	ns1508.ztomy.com
174.128.172.162	PTR	ns1508.ztomy.com
174.128.172.179	PTR	ns1508.ztomy.com
174.128.172.227	PTR	ns1508.ztomy.com
174.128.172.241	PTR	ns1508.ztomy.com
174.128.173.70	PTR	70-173-128-174.ptr.inforelay.net
174.128.175.38	PTR	38-175-128-174.ptr.inforelay.net